
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
CYP1A1 Double Nickase Plasmid (h) | sc-400511-NIC | 20 µg | $410.00 | |||
CYP1A1 Double Nickase Plasmid (h2) | sc-400511-NIC-2 | 20 µg | $410.00 |
CYP1A1 (cytochrome P450 1A1) is a xenobiotic-metabolizing monooxygenase that catalyzes oxidative biotransformation of polycyclic aromatic hydrocarbons and other planar aromatic compounds. Its expression is strongly regulated by the aryl hydrocarbon receptor (AHR) signaling axis, linking environmental ligand exposure to transcriptional programs that shape cellular redox balance and metabolic stress responses. CYP1A1 activity can generate reactive intermediates and modulate oxidative stress, with downstream effects on DNA damage signaling and inflammatory pathways. Altered CYP1A1 regulation and inducibility have been studied in the context of toxicant susceptibility, carcinogen metabolism, and inter-individual differences in chemical sensitivity.
CYP1A1 Double Nickase Plasmid (h) consists of a matched pair of plasmids engineered for high-specificity editing of the CYP1A1 locus in human cell lines. Each plasmid expresses a Cas9 D10A nickase and a distinct sgRNA targeting opposite DNA strands within CYP1A1. When directed to adjacent sites on opposite DNA strands, the two nickases generate offset single-strand nicks that together produce a staggered double-strand break, requiring coordinated on-target activity from both guides. The resulting DNA break is resolved by endogenous cellular repair pathways, most commonly through non-homologous end joining (NHEJ), leading to insertions or deletions that disrupt CYP1A1 function. By requiring dual sgRNA engagement at the target locus, the double nicking approach enhances editing specificity and provides a complementary CRISPR strategy for applications where additional control over targeting precision is desired.
To support efficient identification of edited cells, one plasmid encodes GFP for fluorescent visualization of transfected populations, while the companion plasmid carries a puromycin resistance gene for antibiotic selection. Together, these features support efficient enrichment of co-transfected populations and simplify the validation of CYP1A1-disrupted clones.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.